Dental powder



and to this mass an extremel Patented Mar. 27, 1921;.

UNITED. STATES PATENT-g or -"lca.

MAURICE PARISI, OF CORONA, NEW YOB;

DENTAL ro wnnn.

No Drawing. I

.parts of the teeth, cleans the teeth positively and thoroughly andpossesses a pleasant taste, aroma and color.

Another object of the invention is the provision of'a novel, inexpensivetooth powder and the making of the same by an eflicient, yet simplemethod, thus saving expense and labor. 1

These and other objects and advantages of my invention will become morefully known as the description thereof proceeds, and will then be morespecifical'ly pointed out in the appended claim. To accomplish theseresults, I use powdered rice, powdered beans, powdered bones and acoloring matter, one preferably giving the mass a light 'red color.

The preferred form of the novel tooth powder contains the alcoveingredients in the ollowing proportions by weight which I have found inpracticeto give the best results: 40 grammes (14 ounces% powdered rice,25 grammes (8,7 5 ounces powdered white beans, 5 grammes (1,75 ounces)powdered-bone; and 2 grammes (0,70 ounces) carmine.

The rice and beans areminutel powdered made from bird, fish or other nesis added whereafter the mass is colored by the addition of carminepowder, all in the above outlined p'roportions.

The abrasive action of a tooth powder, of course, is controlled by thehardness or softness of the ingredient powders, together with whetherthe ingredient powders absorb moisture, or not. By the abrasive body ofa tooth powder is meant, only the ingredients intended to have anabrasive action, not including other ingredients, for example, colororperfuming I matters. The action of th1s tooth powder is purelymechanical. The

"abrasive body is formed of powdered bone,

ne powder Application filed March 12, 1925, Serial M15351.

surrounded by a much larger uantity: of powdered beans, both in turn einrounded by a much larger quantity 0 powdered rice. As the user rubs thetooth powder against his teeth, saliva mixes therewith. The bean powderabsorbs moisture much more readily than the other ingredients, and formsa paste-likesubstance, which carries the rice powder and the bonepowder. Gradually the rice powder also forms in a paste, and the w olepaste carries the bone powder.

In this ma ner the powders work to produce a unitary abrasive action.

The entire mass is then rapidly stirred and mixed in a mechanical orother mixing a paratus, and the resulting powder will he found toconstitute an excellent tooth pow der which is refreshing to the gums,positively cleaning the teeth and enterin all spaces and crevices toeflect athorough c eaning, while having a pleasing taste, aroma andappearance.

powdered rice for reducing the abrasive power of said mixture afterpreliminary cleaning of said teeth and said rice powder beingada'pted toabsorb moisture thereafter resulting m a thicker paste of less abrasivecapacity for polishing the teeth after the cleaning thereof.

In testimony whereof I. have aflixed my signature.

MAURICE PARISI.

.70 It will be clear that changes may be made 1 in the ingredients, andin the proportions

